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1. 发明授权

US09036705B2 Technique for bringing encoded data items into conformity with a scalable coding protocol 有权
标题翻译：使编码数据项符合可扩展编码协议的技术
公开(公告)号：US09036705B2
公开(公告)日：2015-05-19
申请号：US13255212
申请日：2009-03-13
申请人： Thomas Rusert , Jörg Huschke , Markus Kampmann , Thorsten Lohmar , Clinton Priddle , Rickard Sjöberg
发明人： Thomas Rusert , Jörg Huschke , Markus Kampmann , Thorsten Lohmar , Clinton Priddle , Rickard Sjöberg
IPC分类号： H04B1/66 , H04N7/36 , H04N21/845 , H04N21/2343 , H04N21/2381 , H04N21/6437 , H04N19/70 , H04N19/33 , H04N19/40
CPC分类号： H04N21/8451 , H04N19/33 , H04N19/40 , H04N19/70 , H04N21/234309 , H04N21/234327 , H04N21/2381 , H04N21/6437
摘要： A technique for making media content in the form of encoded data items decodable by a decoder operating in accordance with a scalable coding protocol that defines two or more media layers is provided. A method implementation of this technique comprises the steps of generating one or more dummy data items that define a first media layer of the scalable coding protocol, and marking the encoded data items as belonging, to a second media layer of the scalable coding protocol.
摘要翻译：提供了一种用于通过根据限定两个或多个媒体层的可伸缩编码协议操作的解码器解码的编码数据项形式的媒体内容的技术。该技术的方法实现包括以下步骤：生成定义可伸缩编码协议的第一媒体层的一个或多个伪数据项，并将编码的数据项标记为归属于可伸缩编码协议的第二媒体层。

2. 发明授权

US08761247B2 Adaptive quantization based on spatial activity histogram 有权
标题翻译：基于空间活动直方图的自适应量化
公开(公告)号：US08761247B2
公开(公告)日：2014-06-24
申请号：US13140172
申请日：2008-12-17
申请人： Alois Martin Bock , Rickard Sjöberg
发明人： Alois Martin Bock , Rickard Sjöberg
IPC分类号： H04N7/12 , H04N11/02
CPC分类号： H04N7/12 , H04N11/02 , H04N19/126 , H04N19/14 , H04N19/172 , H04N19/176 , H04N19/61
摘要： There is provided a method of adapting a Quantization parameter of digitally encoded video, comprising calculating spatial activity values of macroblocks in a picture of interest, creating a histogram of the spatial activity values, determining a change of quantization parameter value for a low activity category ΔQPLA from a skewness parameter of the histogram. There is also provided an apparatus for carrying out the method, and a computer readable product carrying instructions which when executed carry out the method.
摘要翻译：提供了一种适应数字编码视频的量化参数的方法，包括计算感兴趣的图片中的宏块的空间活动值，创建空间活动值的直方图，确定低活动类别＆Dgr的量化参数值的变化 ; QPLA从直方图的偏度参数。还提供了一种用于执行该方法的装置，以及携带执行指令的计算机可读产品，执行该方法。

3. 发明申请

US20140169449A1 REFERENCE PICTURE MANAGEMENT FOR LAYERED VIDEO 审中-公开
标题翻译：参考图像管理用于分层视频
公开(公告)号：US20140169449A1
公开(公告)日：2014-06-19
申请号：US14131191
申请日：2012-05-04
申请人： Jonatan Samuelsson , Rickard Sjöberg
发明人： Jonatan Samuelsson , Rickard Sjöberg
IPC分类号： H04N19/105 , H04N19/30
CPC分类号： H04N19/105 , H04N19/30 , H04N19/31 , H04N19/44 , H04N19/503 , H04N19/65
摘要： An encoded representation (60) of a picture (10) of a video stream (1) is decoded by retrieving buffer description information defining at least one reference picture (40, 42). The buffer description information is used to determine a picture identifier of a reference picture (40, 42), which is compared to picture identifiers of reference pictures (40, 42) stored in a decoded picture buffer (230, 350). If the reference picture (40, 42) is determined to be missing based on the comparison of picture identifiers the layer identifier of the reference picture (40, 42) obtained based on the buffer description information is compared to a layer identifier of the current picture (10) in order to determine whether the missing reference picture (40, 42) has been intentionally removed or is unintentionally lost.
摘要翻译：视频流（1）的图像（10）的编码表示（60）通过检索定义至少一个参考图片（40,42）的缓冲器描述信息来解码。缓冲器描述信息用于确定与存储在解码图像缓冲器（230,350）中的参考图像（40,42）的图像标识符进行比较的参考图像（40,42）的图像标识符。如果基于图像标识符的比较确定参考图像（40,42）丢失，则将基于缓冲器描述信息获得的参考图像（40,42）的层标识符与当前图像的层标识符进行比较（10），以便确定丢失的参考图片（40,42）是否被故意地去除或是无意中丢失。

4. 发明申请

US20140079119A1 Encoder and Decoder and Methods Thereof for Encoding/Decoding a Picture of a Video Sequence 有权
标题翻译：编码器和解码器及其方法，用于对视频序列的图像进行编码/解码
公开(公告)号：US20140079119A1
公开(公告)日：2014-03-20
申请号：US13643688
申请日：2012-10-23
申请人： Jonatan Samuelsson , Rickard Sjöberg
发明人： Jonatan Samuelsson , Rickard Sjöberg
IPC分类号： H04N7/32 , H04N7/26
CPC分类号： H04N19/50 , H04N19/423 , H04N19/44 , H04N19/70
摘要： An object of the embodiments is to achieve an improved reference picture handling. That is achieved by taking into account whether the reference pictures in the decoded picture buffer are long-term reference pictures or short-term reference pictures when determining how they should be marked when the information of the reference picture set is received. The reference pictures are marked as “used for short-term reference” or “used for long-term reference” in the Decoded Picture Buffer (DPB) depending on whether they are included as short-term pictures or long-term pictures in the RPS of a current picture.
摘要翻译：实施例的目的是实现改进的参考图像处理。这是通过考虑当接收到参考图像集的信息时确定如何标记它们时，解码图像缓冲器中的参考图像是长期参考图像还是短期参考图像来实现。在解码图像缓冲器（DPB）中，参考图像被标记为“用于短期参考”或“用于长期参考”，这取决于它们是否被包含在RPS中作为短期图像或长期图像的当前图片。

5. 发明申请

US20120057635A1 Technique for Bringing Encoded Data Items Into Conformity with a Scalable Coding Protocol 有权
标题翻译：使编码数据项符合可扩展编码协议的技术
公开(公告)号：US20120057635A1
公开(公告)日：2012-03-08
申请号：US13255212
申请日：2009-03-13
申请人： Thomas Rusert , Jörg Huschke , Markus Kampmann , Thorsten Lohmar , Clinton Priddle , Rickard Sjöberg
发明人： Thomas Rusert , Jörg Huschke , Markus Kampmann , Thorsten Lohmar , Clinton Priddle , Rickard Sjöberg
IPC分类号： H04B1/66 , H04N7/36
CPC分类号： H04N21/8451 , H04N19/33 , H04N19/40 , H04N19/70 , H04N21/234309 , H04N21/234327 , H04N21/2381 , H04N21/6437
摘要： A technique for making media content in the form of encoded data items decodable by a decoder operating in accordance with a scalable coding protocol that defines two or more media layers is provided. A method implementation of this technique comprises the steps of generating one or more dummy data items that define a first media layer of the scalable coding protocol, and marking the encoded data items as belonging, to a second media layer of the scalable coding protocol.
摘要翻译：提供了一种用于通过根据限定两个或多个媒体层的可伸缩编码协议操作的解码器解码的编码数据项形式的媒体内容的技术。该技术的方法实现包括以下步骤：生成定义可伸缩编码协议的第一媒体层的一个或多个伪数据项，并将编码的数据项标记为归属于可伸缩编码协议的第二媒体层。

6. 发明授权

US06907071B2 Selective prediction for intra-coding video data block 有权
标题翻译：帧内编码视频数据块的选择性预测
公开(公告)号：US06907071B2
公开(公告)日：2005-06-14
申请号：US10153763
申请日：2002-05-21
申请人： Per Fröjdh , Rickard Sjöberg , Torbjörn Einarsson
发明人： Per Fröjdh , Rickard Sjöberg , Torbjörn Einarsson
IPC分类号： H04N7/32 , G06T9/00 , H04N7/26 , H04N7/34 , H04N7/50 , H04N7/12
CPC分类号： H04N19/107 , H04N19/176 , H04N19/593 , H04N19/61
摘要： In a method of video data compression a video frame in a sequence of frames is divided into a number of macroblocks, a particular macroblock being adjacent to a number of previously coded macroblocks including both intra-coded and inter-coded macroblocks. The method includes selecting either a full prediction or limited prediction type in encoding the particular macroblock to provide a corresponding data bit stream, full prediction using both adjacent inter-coded and intra-coded macroblocks, and limited prediction using intra-coded macroblocks only. A signal is provided along with the bit stream to indicate the selected prediction type to a decoder disposed to recover data from the bit stream. The prediction type may be either signaled explicitly, such as by providing a code word in the bit stream, or may be inferred implicitly by selected values or levels of a coding variable.
摘要翻译：在视频数据压缩的方法中，帧序列中的视频帧被划分为多个宏块，特定的宏块与包括帧内编码和帧间编码的宏块之间的多个先前编码的宏块相邻。该方法包括在编码特定宏块中选择全预测或受限预测类型以提供对应的数据比特流，使用相邻帧间编码和帧内编码宏块的全预测，以及仅使用帧内编码宏块的有限预测。与比特流一起提供信号以将所选择的预测类型指示到被设置为从比特流恢复数据的解码器。预测类型可以被明确地发信号通知，例如通过在比特流中提供码字，或者可以通过选择的编码变量的值或级别隐式推断。

7. 发明授权

US09049446B2 Adaptive quantization based on bit ratio 有权
标题翻译：基于比特率的自适应量化
公开(公告)号：US09049446B2
公开(公告)日：2015-06-02
申请号：US13140203
申请日：2008-12-17
申请人： Alois Martin Bock , Rickard Sjöberg
发明人： Alois Martin Bock , Rickard Sjöberg
IPC分类号： H04N7/26 , H04N19/194 , H04N19/126 , H04N19/15 , H04N19/61 , H04N19/14
CPC分类号： H04N19/194 , H04N19/126 , H04N19/14 , H04N19/15 , H04N19/61
摘要： There is provided a method of adapting a Quantization parameter of digitally encoded video, comprising using a look-ahead encoding pass to provide look-ahead bit costs for each macroblock in a picture of interest, calculating an activity metric for each macroblock in the picture of interest, determining at least an accumulated look-ahead bit cost threshold for a low macroblock activity category, wherein the low macroblock activity category comprises macroblocks having an activity metric below a pre-determined level, sorting the macroblocks according to the calculated activity metrics of each macroblock to provide sorted macroblocks, adding sorted macroblocks to the low macroblock activity category in ascending activity order and accumulating bit costs of the added sorted macroblocks up to the determined accumulated look-ahead bit cost threshold, and applying a change in quantization parameter, Qp, to the macroblocks of the picture of interest comprising decreasing the Qp value of the macroblocks in the low macroblock activity category.
摘要翻译：提供了一种适应数字编码视频的量化参数的方法，包括使用先行编码遍以提供感兴趣的图片中的每个宏块的先行位成本，计算图像中每个宏块的活动度量确定低宏块活动类别的至少累积超前位成本阈值，其中所述低宏块活动类别包括具有低于预定电平的活动度量的宏块，根据所计算的每个所述活动度量的活动度量对所述宏块进行排序宏块，以提供排序的宏块，按升序的活动顺序将排序的宏块添加到低宏块活动类别，并将所添加的分类宏块的比特成本累加到所确定的累积预先比特成本阈值，以及应用量化参数Qp，涉及感兴趣的图片的宏块，包括减小m的Qp值宏块活动类别中的宏块。

8. 发明申请

US20130329814A1 Deblocking Filtering Control 有权
标题翻译：去块过滤控制
公开(公告)号：US20130329814A1
公开(公告)日：2013-12-12
申请号：US14001627
申请日：2011-12-16
申请人： Andrey Norkin , Kenneth Andersson , Rickard Sjöberg
发明人： Andrey Norkin , Kenneth Andersson , Rickard Sjöberg
IPC分类号： H04N7/26
CPC分类号： H04N19/86 , H04N19/117 , H04N19/14 , H04N19/176 , H04N19/82
摘要： A first filter decision value is calculated for a block (10) of pixels (11, 13, 15, 17) in a video frame based on pixel values of pixels (11, 13, 15) in a first line (12) of pixels (11, 13, 15, 17) in the block (10). A second filter decision value is also calculated for the block (10) based on pixel values of pixels (21, 23, 25, 27) in a corresponding first line (22) of pixels (21, 23, 25, 27) in a neighboring block (20) in the video frame. The first filter decision value is used to determine how many pixels in a line (12) of pixels (11, 13, 15, 17) in the block (10) to filter relative to a block boundary (1) between the block (10) and the neighboring block (20). The second filter decision value is used to determine how many pixels in a corresponding line (22) of pixels (21, 23, 25, 27) in the neighboring block to filter relative to the block boundary (1).
摘要翻译：基于像素的第一行（12）中的像素（11,13,15）的像素值，针对视频帧中的像素（11,13,15,17）的块（10）计算第一滤波器判定值（11,13,15,17）。还基于像素（21,23,25,27）的对应的第一行（22）中的像素（21,23,25,27）中的像素（21,23,25,27）的像素值，针对块（10）计算第二滤波器判定值，视频帧中的相邻块（20）。第一滤波器判定值用于确定块（10）中的像素（11,13,15,17）中的像素（12）中相对于块（10）之间的块边界（1）进行滤波的像素数）和相邻块（20）。第二滤波器判定值用于确定相邻块中相对于块边界（1）滤波的像素（21,23,25,27）的对应行（22）中的像素数量。

9. 发明申请

US20130294525A1 Method for Filter Control and a Filtering Control Device 有权
标题翻译：滤波器控制方法和滤波控制装置
公开(公告)号：US20130294525A1
公开(公告)日：2013-11-07
申请号：US13979495
申请日：2011-12-21
申请人： Andrey Norkin , Kenneth Andersson , Rickard Sjöberg
发明人： Andrey Norkin , Kenneth Andersson , Rickard Sjöberg
IPC分类号： H04N7/26
CPC分类号： H04N19/90 , H04N19/117 , H04N19/157 , H04N19/176 , H04N19/46 , H04N19/86
摘要： Current deblocking filters are using the same filters with the same filtering strength irrespective of the block size and the size of the transform used. However, in the new video coding standards such as emerging HEVC the PU sizes can vary from 4 to 64 and the TU sizes can vary from 4 to 32. Therefore, filtering the same amount of pixels (e.g. two or three) from the block boundary for the block of size 4 can be excessive, while for the block size 32 it may not be enough, with the result that the boundary between two blocks is still visible. Hence, there is a need for an efficient deblocking filter control that can be used to reduce blocking artifacts at block boundaries and that does not have the above mentioned drawbacks. It is a general objective to provide an efficient deblocking filter control. Thus, the objective is solved by applying different filters for different block sizes such as CU, PU or/and TU sizes. Accordingly, the deblocking filtering strength is adjusted based on the block size, which implies that the amount of modification applied to pixels by the deblocking filter is varied depending on the block size. The amount of modification that is being varied is in one embodiment the number of pixels to be modified.
摘要翻译：当前的去块滤波器使用具有相同滤波强度的相同滤波器，而不管块大小和所使用的变换的大小。然而，在诸如新兴HEVC的新的视频编码标准中，PU尺寸可以在4到64之间变化，并且TU尺寸可以在4到32之间变化。因此，从块边界滤波相同数量的像素（例如两个或三个）因为块4的大小可能会过大，而对于块大小为32，可能还不够，结果是两块之间的边界仍然可见。因此，需要一种有效的去块滤波器控制，其可以用于减少块边界处的块伪影，并且不具有上述缺点。提供有效的去块滤波器控制是一个总体目标。因此，通过对不同的块大小（例如CU，PU或/和TU尺寸）应用不同的滤波器来解决目的。因此，根据块大小调整去块滤波强度，这意味着根据块大小来改变由去块滤波器施加到像素的修改量。正在变化的修改量在一个实施例中是待修改的像素数。

10. 发明申请

US20120250765A1 Method and Arrangement for Video Coding 有权
标题翻译：视频编码的方法和布置
公开(公告)号：US20120250765A1
公开(公告)日：2012-10-04
申请号：US13515140
申请日：2010-12-17
申请人： Zhuangfei Wu , Kenneth Andersson , Clinton Priddle , Thomas Rusert , Rickard Sjöberg
发明人： Zhuangfei Wu , Kenneth Andersson , Clinton Priddle , Thomas Rusert , Rickard Sjöberg
IPC分类号： H04N7/32
CPC分类号： H04N19/573 , H04N19/105 , H04N19/107 , H04N19/154 , H04N19/159 , H04N19/172 , H04N19/176 , H04N19/46 , H04N19/513 , H04N19/70
摘要： Methods and arrangements in video encoding and decoding entities. The methods and arrangements relate to the joint encoding of reference information associated with encoded video. The method and arrangement in a decoding entity relate to obtaining (402) a single syntax element associated with an encoded block Be, and identifying (404) a reference mode and one or more reference pictures based on the obtained syntax element. The method and arrangement further relate to-decoding (406) of the block Be based on the identified reference mode and one or more reference pictures, thus providing a decoded block, B, of pixels.
摘要翻译：视频编码和解码实体中的方法和布置。所述方法和装置涉及与编码视频相关联的参考信息的联合编码。解码实体中的方法和布置涉及获得（402）与编码块Be相关联的单个语法元素，并且基于所获得的语法元素来识别（404）参考模式和一个或多个参考图片。该方法和装置还涉及基于所识别的参考模式和一个或多个参考图片的块Be的解码（406），从而提供像素的解码块B。

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